Boil elbow mac, preheat oven to 350°F

In a seperate sauce pan cookbutter until all the water is out, then add flour. This will create a glue

Whisk all ingredients while on low heat.U can add salt pepper, whatever to your tasting. I added. Smoked paprika and powder mustard.

Add the 3 cups of milk. This will steam up so watch your hands.

Add tempered egg. Whisk all ingredients. Add 3/4 cheese, then add the mac.

Pour into your baking dish. Add last bit of cheese. Mix melted butter with panko crumbs. Then spread the mix on top of mac